| 13 Products | Dec 2024 | Dec 2025 | Change |
| John West Mackerel Fillets in Sweet Chilli (115g) | £1.95 | £1.95 | £0.00 No change |
| | £1.95 | £1.95 | £0.00 No change |
| Waitrose Ltd Essential Hot Smoked Scottish Mackerel Fillets (0.3kg) | £4.20 | £4.20 | £0.00 No change |
| | £4.20 | £4.20 | £0.00 No change |
| Waitrose Ltd Essential Mackerel Fillets in Olive Oil drained (82g) | £1.25 | £1.80 | + £0.55 44% increase |
| | £1.25 | £1.80 | + £0.55 44% increase |
| John West King Oscar Mackerel Fillets in Olive Oil (115g) | £1.25 | £1.25 | £0.00 No change |
| | £1.25 | £1.25 | £0.00 No change |
| John West Mackerel Fillets in Sunflower Oil (115g) | £1.95 | £2.00 | + £0.05 2.6% increase |
| | £1.95 | £2.00 | + £0.05 2.6% increase |
| Graal Mackerel Fillets in Tomato Sauce (170g) | £1.35 | £1.35 | £0.00 No change |
| | £1.35 | £1.35 | £0.00 No change |
| John West King Oscar Mackerel Fillets in Lemon Oil Drained (115g) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| Waitrose Ltd Essential Mackerel in Spicy Tomato Sauce (125g) | £1.00 | £1.55 | + £0.55 55% increase |
| | £1.00 | £1.55 | + £0.55 55% increase |
| Waitrose Ltd Essential Mackerel Fillets in Tomato Sauce (125g) | £1.00 | £1.55 | + £0.55 55% increase |
| | £1.00 | £1.55 | + £0.55 55% increase |
| John West Mackerel Fillets in Olive Oil (115g) | £1.95 | £2.00 | + £0.05 2.6% increase |
| | £1.95 | £2.00 | + £0.05 2.6% increase |
